Insulin pens dribble from the tip of the needle after injection

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Insulin pens dribble from the tip of the needle after injection

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Publication Article, peer reviewed scientific
Title Insulin pens dribble from the tip of the needle after injection
Author(s) Annersten, Magdalena ; Frid, Anders
Date 2000
English abstract
Aim. To study different insulin pens regarding leakage from the tip of the needle after injection. Patients and method. Six pens were tested; Saline Pen 3.0 ml (Lilly), B-D Pen 3.0 ml, NovoLet 1.5 and 3.0 ml, NovoPen 1.5 and 3.0 ml. Twenty volunteers were injected with sterile saline and the needle was withdrawn after 1, 3, 5, or 7 s respectively. Any dribble was collected on a filter paper and weighed. The procedure was videotaped. Results. There was a minimum of dribbling from the 1.5 ml pens. Eight out of 20 NovoPen 3.0 ml and B-D Pen 3.0 ml, 16 out of 20 NovoLet 3.0 ml, and 19 out of 20 Saline Pen (Lilly) dribbled after a 7 s hold-in time. The 8 B-D Pen 3.0 ml had leaked 4.0 mg (2.4±18.8), the 8 NovoPen 3.0 ml 4.7 mg (3.8±6.7), the 16 NovoLet 3.0 ml 5.0 mg (3.1±16.6) and the 19 Saline Pen 3.0 ml had leaked 9.2 mg (4.9±19.1). Conclusion. There is a clinically significant leakage of fluid from the needle tip even after 7 s hold-in time. Patients should be taught to hold the needle in for at least 10 s to be assured they get the intended dose.
DOI http://dx.doi.org/10.1002/1528-252X(200006)17:4<109::AID-PDI42>3.0.CO;2-N (link to publisher's fulltext)
Publisher John Wiley & Sons
Host/Issue Practical Diabetes International;4
Volume 17
ISSN 1357-8170
Pages 109-111
Language eng (iso)
Subject(s) diabetes
insulin injection
insulin pen
insulin wastage
insulin leakage
needles
air bubbles
Medicine
Research Subject Categories::MEDICINE
Handle http://hdl.handle.net/2043/14299 (link to this page)

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